West Emergency Medical Technician Bryce Reed, center, attends a memorial service in Waco, Texas, for his brother, Cyrus Reed, and other victims of the fertilizer plant explosion in West, Texas. Eric Gay, AP

Family, area residents and fellow firefighters attend the West memorial service held at Baylor University in Waco, Texas. The memorial service honored the volunteer firefighters who lost their lives at the fertilizer plant explosion in West, Texas, last week. Erich Schlegel, Getty Images

President Obama and first lady Michelle Obama attend a memorial service at Baylor University in Waco, Texas. Jewel Samad, AFP/Getty Images

One of Joseph Pustejousky's children reaches out to his casket following a memorial service for victims of the fertilizer plant explosion in West, Texas. Eric Gay, AP

Firefighter Honor Guard members transfer a dozen flags from caskets to present to family members during a memorial service for victims of the fertilizer plant explosion in West, Texas. Eric Gay, AP

President Obama attends a memorial for firefighters killed at the fertilizer plant explosion. Eric Gay, AP

West emergency medical techicians Terase Alexander and Russell Lebowsky stand at the the casket of West firefighter Cyrus Reed following a memorial service for victims of the fertilizer plant explosion. Eric Gay, AP

An honor guard salutes during a shift change before a memorial service April 25 for first responders who died in a fertilizer plant explosion. Fourteen firefighters and other first responders were killed April 17 when a burning fertilizer plant exploded in West, Texas. Eric Gay, AP

The caskets of first responders killed by the fertilizer plant blast sit in an auditorium before the start of a memorial service. Eric Gay, AP

An honor guard stands in front of the caskets. Eric Gay, AP

Members of the Patriot Guard line the road during a procession of firefighting vehicles. Eric Gay, AP

Members of the Corvell City and Osage Volunteer Fire Department watch the parade. Erich Schlegel, Getty Images

People watch as fire trucks roll past. Eric Gay, AP

Fire trucks take part in a procession before the start of a memorial service. Eric Gay, AP